Thread: Superformance MKII, Riverside Racer 289 FIA vintage race car
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Old 06-24-2021, 04:01 AM
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Location: Canandaigua, NY
Cobra Make, Engine: SPF MKII Riverside Racer FIA
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Glen,

The headers are 1 3/4" and the exhaust pipes are 2 1/2". 2" pipes would have been too restrictive for this engine and 3" pipes would have killed the torque. They do real nice work at Gas-N.

Jim
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